Which of the following is NOT a principle of training?

• A. Commanders are the primary trainers
• B. Train using multi-echelon techniques to maximize time and resources
• C. Sustain levels of training proficiency over time
• D. Short training duration

Answer: (D)

Effective training hinges on leadership-driven, resource-efficient, sustained practice rather than brief, one-off sessions. Commanders must be the primary trainers because they set the standards, tailor the program to mission needs, and ensure training stays relevant to operations. Training should also leverage multi-echelon approaches, using different levels of units and participants to maximize time, resources, and realism—this keeps the effort efficient and increases overall readiness. Proficiency must be sustained over time, with deliberate repetition, assessments, and recalibration to prevent skill decay.

Short training duration does not fit these principles because it usually fails to develop and rehearse the necessary skills to standard, undermining long-term readiness.